5 Signal Descriptions List
The following tables provide the details on signal names classified by the peripheral.
Signal Name | Function | Type |
---|---|---|
Analog Comparators (AC) | ||
AIN[7:0] | AC Comparator Inputs | Analog Input |
CMP[3:0] | AC Comparator Outputs | Digital Output |
Analog-to-Digital Converter (ADCx) | ||
AIN[11:0] | ADC Input Channels | Analog Input |
VREFA | ADC Voltage External Reference A | Analog Input |
Digital-to-Analog Converter (DAC) | ||
VOUT | DAC Voltage output | Analog Output |
VREFA | DAC Voltage External Reference A | Analog Input |
External Interrupt Controller (EIC) | ||
EXTINT[15:0] | External Interrupt Pins | Digital Input |
NMI | External Non-Maskable Interrupt Pin | Digital Input |
Generic Clock Generator (GCLK) | ||
GCLK_IO[7:0] | Generic Clock (source clock inputs or generic clock generator output) | Digital I/O |
Custom Control Logic (CCL) | ||
IN[11:0] | Logic Inputs | Digital Input |
OUT[3:0] | Logic Outputs | Digital Output |
Power Manager (PM) | ||
RESET | External Reset Pin (Active Level: LOW) | Digital Input |
Serial Communication Interface (SERCOMx) | ||
PAD[3:0] | SERCOM Inputs/Outputs Pads | Digital I/O |
Oscillators Control (OSCCTRL) | ||
XIN | Crystal or external clock Input | Analog Input (Crystal Oscillator)/Digital Input (External Clock) |
XOUT | Crystal Output | Analog Output |
32.768 kHz Oscillators Control (OSC32KCTRL) | ||
XIN32 | 32.768 kHz Crystal Oscillator or External Clock Input | Analog Input (Crystal Oscillator)/Digital Input (External Clock) |
XOUT32 | 32.768 kHz Crystal Oscillator Output | Analog Output |
Timer Counter (TCx) | ||
WO[1:0] | Waveform/PWM Outputs / Capture Inputs | Digital I/O |
Timer Counter (TCCx) | ||
WO[7:0] | Waveform/PWM Outputs | Digital I/O |
Peripheral Touch Controller (PTC) | ||
X[15:0] | PTC Outputs | Digital Outputs |
Y[31:0] | PTC Inputs/Outputs | Analog I/O |
General Purpose I/O (PORT) | ||
PA31 - PA30 / PA28 - PA27 / PA25 - PA00 | General Purpose I/O Pin in Port A | Digital I/O |
PB31 - PB30 / PB25 - PB00 | General Purpose I/O Pin in Port B | Digital I/O |
PC28 - PC24 / PC21 - PC05 / PC03 - PC00 | General Purpose I/O Pin in Port C | Digital I/O |
Controller Area Network (CAN) | ||
TX | CAN Transmit Line | Digital Output |
RX | CAN Receive Line | Digital Input |
Position Decoder (PDEC) | ||
PDEC[2:0] | PDEC inputs | Digital Input |
Serial Wire Debug interface | ||
SWDIO | Serial Wire Debug Bidirectional Data | Digital I/O |
SWCLK | Serial Wire Debug Clock | Digital Input |
Note:
- Refer to Configuration Summary and Pinout and Packaging chapters for the list of peripherals, peripheral instances, channels, and input/output pins present in each variant.